Radiator



C. H. DE I A-MONTE.

y -RADIATOR.'

APPMCATIONHLED AUG.29.1919.'

21,404,304. Patented Jan. 24, 1922.

3 SHEETS-SHEET l.

/1 TTORNE C. H. DE LAR/10mi RADIATOR.

' APPLCLAHON FILED AUG,29| 1919. l LQSOI. atented Jan. 24, 1922.

a SHEETS-.SHEET 2.

kATTUHIVEVE c. H. D'E LA MONTE.

-RADIATOR. I APPLICATION FILED AUG.29, `1919.

Arrofwfrs Patented Jan. 24,v 1922.

3' SHEETS-SHEET s.

UNITED l,STATI-:s

PATENT orifice.

CASCIOUS H. DE LA MONTE, OF. NEW YORK, N. Y., ASSIGNOR 'AIO INTERNATIONAL MOTOR COMPANY,` OF NEW YORK, N. Y. A CORPORATION OF DELAWARE.

nnnmronf Specification of Letters Patent. Patented J an. 24, Y1922,

Application ledAugust 29, 1919. Serial No. 320,550.

city of New York, in the State of New York,

have invented certain new' and useful Improvements in Radiators, of which the folaction insuch manner that maximum circulation of air over the parts to be cooled will be obtained. ,Generally speaking, in order to attain the results sought, .efforts have been made'v to place the fan in a more or less confined' space open to the atmosphere only byway of the tubes and the discharge opening. In known constructions, 'fon instance, it has been proposed to make the entire areaunder the hood of a motor practically air-tight except forthe inlet passages over the radiator tubes and the outlet discharge at the fan. Such attempts have not resulted in practical constructions since it is difficult for the manufacturer to vbuild a chamber of this character and, during use, the degree of suction is lessened by reason of the relatively large area subjected to the fan action. In accordance with the present `invention a cooling system is provided in which aseriesf air channels or ducts are so .built up between the radiator v 'tubes and the fan as to insure direct action of the fan on the volume of air which is to be drawn through `the radiator tubes, the suctional action secured beingincreased to maximum degreeand the .air circulating in currents only at the areas to be cooled. The principal object :of the invention is to provide a simple and inexpensive construction for the purpose described which may be built in, in and around a radiator and motor of standard form. The ychannels ar'ebuilt up by sheet metal walls of such form and so disposed with relation tol one another as to subject the airdisposed therein tothe direct action ofthe fan and cause the air to travel from the. tubes directly to the.fan blades and be discharged therefrom in the usual manner.

The invention will be described in greater detail in connection with one practical embodiment thereof as illustrated in the accompanying drawings, in which- Figure l'is a view in rear elevation of a radiator mounted at the rear of a motor,

part of the rear wall being broken away .to

show .the relation of the sheet metal walls forming the air channels. n Figure 2 is a view partly in section and partly in side elevation of the radiator and motor shown in Figure l.

Figure 3 is a view in elevation showing the fan structure proper.

Figure 4 is a view in rear elevation of the radiator shown in Figure l with its rear wall, motor and fan removed.

The motor a of any type has its jackets in communication with the head b and foot c of the radiator through water connections a, a2, as usual, and the radiator unit illustrated is completed by means of bundles of vertically disposed water tubes d which connect the head b of the radiator with the foot c at opposite sides of the head. The invention is not concerned with the specific character of the elements thus far described.

The problem dealt with is the circulatin of cooling currengs of air through the tubes (Z in the most eife tive manner. In the illustrated embodiment the fan e (illustrated in Figure 3) is shown as mounted on the iiywheel af* ofthe motor, but as the description proceeds it will be evident that the invention is not to be limited to the type Aof fan employed nor to its relation to the fly-wheel. The fan shown, however, has been found to have certain advantages which makeA it most efficient in use. This fan is made up of a series of blades e which are carried by a ring e2 and extend inwardly but eccentrically with respect to the center lof the ring. The edges of the blades e are bent, as at e3, andthese edges are intended to extend somewhat beyond the rear face'of the support for the fan, which in lthe presentl instance is Athe fly-wheel a, so as to bite the air and thus create a maximum suctional The Yimproved air channels whereby the air is vdrawn ydirectly from the tubes d to the fan and there expelled 'will now be described. The rear wall f of the radiatoris .imperforate :and has its lower edge curved to raccommodate thefan e. On the reverse face lof the rear wall f is supported a downwardly and rearwardly inclined plate g which may ...have formed therewith straps g to permit 'it to be readilyI riveted to the wall f. The

lsheet g has its lower rear edge overlapped .by a flange kon the upper side of a plate h which is bolted to the motor. The plate h" i, another platea' which is so inclined rear`' wardly and downwardly as to extend into juxtapositionl with the front ledges of the fan blades e', the opening n the plate .being of generally cylindrical form toconform to the shape' of the fiy-wheel. The

opening left in thesheet i] is insuch position with' relation to the opposite edges e3 of the fari blades e as to permit these edges to ex tend into the channelsadjacent the fan and bite the air. The ange la? on the lower portion of the sheet k is riveted to the lower portion of the plate z'. p

As will bevevident from Figures 1 and 2 one wall ofthe air channel of the tubes d to the Vfan is formedl by the rear wall f of the radiator. The other'wall is indicated at 7c and comprises a sheet of metal disposed at v the front side ofthe radiator tubes d and extending inwardlyto a 'point in. line with- 'the straps g wherethe sheet lc is bent at 4right `angles and extends acrossthe space between the plate 7c and the wall f, this angle section constituting an. inclined wall In to deect the air currents 'downwardly 'toward the fan. The plate 7c .is supported by rivet-,

ing the wall section'fi. to the straps g. The

sheet t carried by the motor. is formed with a flange h3 *which* laps over and abuts against Athe wall Ic as indicated. in dotted lines in Figure 1.

r In Figure 4, the arrangement of the various channel walls with respect to each other is illustratedi The strap g connecting the baflie plate g and the inclinedv walls lc is clearly shown. The ange It of the plate z. overlaps the bottom edge kof the plate g. The reference character 4I indicates the line yof riveting where the upper edge of the-plate is connected to the front radiator From the description given it will'beevident that the air.around the tubes disconned'between'the ,rear wall f and the front wall la, with respect to each bundle of tubes.

` The inclined-wall 7c facilitates the .direct in ward movement of the air and deects it downwardly under the suctional action of the fan. Passing from the channels thus rovidedwith a ange h2 for a purposeV desired and the maximum coolin formed, the air continues in its travel betweenthe plate h and sheet i where it is picked up by the fan blades e and thrown out radially therefrom, being discharged at the outer side of the wall f into the atmosphere. The plate g and the downwardly extending Wall sections lc of the wall 7c form a dead air pocket and cuts off the air Achannels from. the motor space.

scribed are so united as to constitute a restricted path for the air and since practically only the volume of air about the tubes is acted. upon by the fan blades the maximum suctional effort is obtained at the place secured. ANone of the suctional e -ort of the fan is dissipated by 4having it act on air which does not contact with the area to be cooled. The plates are further so arranged as to Adirect the air along continuous unbroken channelsso as to minimize eddy currents and frictional losses. -The construction is' such as to facilitate assembling and disassembling of the sheets forming the im? proved cooling system. -For instance, the outside dimensions of the plate 1i are such as to permit this plate to clear the lower edge of the linclined plate g. rlhe sheet h is carried by the motor a so that if the l'motor be' removed the sheet will be carried'with it permitting free access to the remaining sheets which are'secured'to the rear wall f.

As pointed out hereinbefore the invention 'i is 'not to be limited, in its broader aspects, to the particular type of motor or radiator The channels formed are of such relatively restricted cross-sectional'area and all of the--parts deeffect is employed sinc''the elements described, in

so far as they are new, are brought together for the purpose of establishing restricted and directional communicationy between the radiator tubes and a fan. Reference 4istobe had to the appended claims for a `more definite statementof the scope of the invention.

I claim as my invention:

` 1. In a radiator, a bundle of water tubes,

a fan, imperforate walls at either side of the tubes, imperforate transverse walls mounted within the bundles of tubes .and separating them, 'an imperforate vertical plate extending across they front of the radiator, and asecond plate spaced therefrom and disposed between the fan and the'rst'named plate, said second named plate having an opening ,to expose the air to thefan blades, and said first' and second' `named plates forming achannel communicating with the channels formed around each bundle of tubes by said vfirst named Vertical and transverse imperf'o rate walls.

2. Ina radiator, vertically 'dispos-.edbun-1 l dles of tubes at opposite sides of theradiator and extending between the upper and lower reservoirs thereof, an imperforate rear wall iso ynamed plates forming channels communieating with the channel formed around 'each' bundle of tubes by said imperforate front, rear and transverse walls.

3. ln a radiator, vertically disposed bundles of tubes at opposite sides of the radiator andextending between the upper and lower reservoirs thereof, aniinperforate rear wall for the radiator, imperforate walls at the front side of the bundles of tubes, imperforate transverse walls between said last named walls and the rear wall-and extending downwardly and inwardly from the tubes, an imperforate plate extending across the front of the radiator, a second plate spaced therefrom and disposed between the fan and the first named plate, said second named plate having an opening to expose the air to the fan blades and said first and second named plates forming channels communicating with ythe channel formed around each bundle of tubes by said imperforate front, rear and transverse walls, and an inclined imperforate plate extending from the rear wall to said first named' plate and dis posed between said transverse walls.

4. In a radiator, a bundle of water tubes, a fan, imperforate walls at either sideof the tubes, an imperforate plate extending across the front end of the radiator, and a second plate secured to the rear wall and spaced from the first plate and disposed between the fan' and the first named plate, said second named plate having a circular opening to expose the air to the :tan blades and said first and second named plates forming a channel communicating with the-channel formed between said iinperforate walls.

5. In a radiator, a fly-wheel, vertically disposed bundles of tubes at opposite sides of the radiator extending between the upper and lower reservoirs, an imperforate rear `wall for the radiator, imperftorate walls at the front side of the bundle of tubes bent to form imperforate transverse walls extending between the front and rear walls and inclined downwardly and inwardly from the tubes, an imperforate plate extending across the front end of the radiator, a second plate supported on the rear wall and spaced from the first named platel and disposed between; theV fly-wheel and the first named plate, said second named plate having a circular opening concentric ywith the fly-wheel, fan blades carried von the fly-wheel and having bent edges extending through the last named Iopening, said second and first named plates forming a channel communicating with the channel formed between said imperforate front and rear walls for the tubes, and an inclined imperforate plate extending from the rear wall to the first named plate and disposed between said transverse walls.

Thirs specification signed this 27 th day of August, A. D. 1919.

loAsoIoUs H. DE LA MONTE. 

